JP5658552B2 - Display control apparatus, control method therefor, program, and recording medium - Google Patents

Description

  The present invention relates to a technique for drawing a figure at an input position on a screen or erasing a figure drawn at the position.

  In portable devices such as a digital camera and a mobile phone having a camera function in recent years, a user can add various effects to images and moving images obtained by shooting. For example, an icon such as a graphic or a handwritten character can be placed on an image obtained by photographing with a mobile phone, and the generated image can be sent to another user by attaching it to an email or the like. Recently, some portable devices as described above employ a touch panel display as a display device, and the user can more intuitively place graphics, characters, and the like on an image.

  Some of the above-mentioned devices have a function of deleting an already placed figure because a figure may be mistakenly placed in a place not desired by the user when placing the figure in an image or moving image. Some have. In particular, many portable devices as described above are provided with a small display device, and in order to enlarge an image drawing area, only a limited number of menus such as recently used functions are displayed. In the case of such a portable device, the user has to perform a complicated operation before selecting the menu for deleting the graphic and actually deleting the graphic.

  Patent Document 1 discloses an input device that uses a pen-type user interface and switches between an input mode and an erase mode depending on whether the shape of the pen tip is thick or thin.

  On the other hand, figures arranged in an image or a moving image may overlap. When the figures overlap, it is difficult to browse the figures in an identifiable manner. In particular, when an animation is set for a graphic to be arranged, it is difficult to identify the graphic, and this may give an unpleasant feeling to the user rather than giving an incidental effect.

  In Patent Document 2, when an arrangement position of an image is newly instructed so as to overlap an area set based on the shape of an image that is prohibited from overlapping among images arranged in the image, A technique for controlling to arrange in a blank area other than the area is disclosed.

Japanese Patent Application Laid-Open No. 07-200133 JP 2001-188525 A

  However, when the input mode and the erasing mode are switched according to the pen tip shape as in Patent Document 1 described above, a special input user interface is required, which is not general-purpose.

  Also, as in Patent Document 2, when an image is arranged in a blank area other than the area set based on the shape of the image that is prohibited from overlapping, the image is arranged at a position different from the position desired by the user. Therefore, there is a possibility of giving the user an impression that it is difficult to use.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to facilitate erasure of a graphic already drawn in an image. Another object of the present invention is to generate an image in which a graphic is drawn at a desired position while avoiding duplication of the graphic.

In order to achieve the above object, a display control apparatus according to the first aspect of the present invention comprises the following arrangement.
The position input means for inputting the position on the screen of the display device, the drawing means for drawing a figure according to the locus of the input position input by the position input means, and the start position of one input by the position input means as a reference And a first determination unit that determines whether or not the predetermined area has a predetermined overlap or more with a predetermined area in the graphic already drawn by the drawing unit , and controls drawing of the graphic by the drawing unit Control means, and when the first determination means determines that the predetermined area based on the start position does not overlap with a predetermined area on the already drawn figure , The control means controls the drawing means to draw a figure according to the locus of the input position during one input, and the first determination means has already drawn a predetermined area based on the start position . set in advance in the figure If it is determined region and to have a predetermined or more overlapping, the control means of the predetermined area relative to the input position in a single input, a predetermined area already drawn graphic Do not draw a figure in an area that does not overlap more than a predetermined amount, and out of a predetermined area that is based on the input position during one input, a predetermined area that is previously set for the already drawn figure Do not draw the figure in the overlapping area, and erase the already drawn figure where the preset area has a predetermined overlap or more according to the locus of the input position during one input and control to features and Turkey as.

The display control apparatus according to the second aspect of the present invention has the following configuration.
Position input means for inputting a position on the screen of the display device, drawing means for drawing a graphic in accordance with the locus of the input position input by the position input means, and one-time input by the position input means continues. Second determination means for determining whether or not the predetermined area based on the position where the input is made has a predetermined overlap or more with a predetermined area in the graphic already drawn by the drawing means And a control means for controlling the drawing of the figure by the drawing means , and a predetermined area based on the position input by the second determination means is a preset area for the already drawn figure If it is determined that there is an overlap greater than or equal to the predetermined range , the control means determines that the region that has been determined to overlap with a region that has been previously set in a figure that has already been drawn out of the positions where input is being performed once. drawing hand to The by controlled so is not performed drawing figure, the second judging means by overlapping the input position of the predetermined area and a predetermined or more graphic predetermined area is already drawn relative to the that have been made In the case where it is determined that there is no area, the control means determines that the area determined based on the position where the input is being performed once does not overlap with the area preset in the already drawn figure. drawing means drawing the figure due to the features that you control to be performed.

A display control apparatus according to the third aspect of the present invention has the following configuration.
The position input means for inputting the position on the screen of the display device, the drawing means for drawing a figure according to the locus of the input position input by the position input means , and the start position of one input by the position input means as a reference The first determination means for determining whether or not the predetermined area has a predetermined overlap or more with a predetermined area in the graphic already drawn by the drawing means, and one input by the position input means While continuing, the first region for determining whether or not the predetermined region based on the position where the input is made has a predetermined overlap or more with the region preset in the graphic already drawn by the drawing means. An area in which a predetermined area based on the start position is set in advance by a first determination means as a figure that has already been drawn by the first determination means. And above It is determined to have no overlap, and, when a second determination means by overlapping the input position of the predetermined area and a predetermined or more graphic predetermined area is already drawn relative to the that have been made When the determination is made, the control means erases the already drawn figure whose predetermined area has a predetermined overlap or more, and the drawing means draws the figure according to the input position. and control to features and Turkey as.

  With such a configuration, according to the present invention, it is possible to easily erase a graphic already drawn in an image, or to generate an image in which a graphic is drawn at a desired position while avoiding duplication of the graphic. Is possible.

1 is a block diagram showing a functional configuration of a digital video camera 100 according to an embodiment of the present invention. The figure which showed GUI for demonstrating the drawing tool which concerns on embodiment Flowchart of drawing control processing according to the embodiment The figure for demonstrating the overlap determination of the input start position which concerns on embodiment The figure for demonstrating the conditional expression of the overlap determination which concerns on embodiment Flowchart of drawing mode processing and erasing mode processing according to the embodiment The figure for demonstrating operation | movement of the drawing mode and erase mode which concern on embodiment The figure for demonstrating the overlap determination of the position where the input which concerns on embodiment is made

  Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings. In one embodiment described below, the present invention is applied to a digital video camera as an example of a display control device that can draw or erase a figure in accordance with a position where an input is made on a screen. An example will be described. However, the present invention can be applied to any device capable of drawing or erasing a figure in accordance with a position where an input is made on the screen.

FIG. 1 is a block diagram showing a functional configuration of a digital video camera 100 according to an embodiment of the present invention.
The system control unit 101 is a CPU, for example, and controls the operation of each block included in the digital video camera 100. Specifically, the system control unit 101 reads out an operation program of each block included in the digital video camera 100 stored in, for example, the nonvolatile memory 114, develops the program in the system memory 113, and executes the operation program. To control. The nonvolatile memory 114 is an electrically erasable / recordable memory such as an EEPROM, for example, and stores parameters necessary for the operation of each block in addition to the operation program for each block provided in the digital video camera 100. The system memory 113 is, for example, a RAM and is not only used as a development area for the operation program of each block provided in the digital video camera 100 but also as an area for temporarily storing intermediate data output in the operation of each block. Used.

  In the present embodiment, the operation of each block included in the digital video camera 100 is described as being controlled by the operation program of the block. However, the present invention is not limited to this, and each block is similar to the operation program. You may comprise with the circuit which processes.

  The photographing lens 104 is a photographing lens group provided in the digital video camera 100 including a focus lens, and forms an optical image on the imaging unit 106 via a shutter 105 having a diaphragm and an ND filter function. The imaging unit 106 is an imaging element such as a CCD or a CMOS sensor, for example, converts an optical image formed through the photographing lens 104 into an analog image signal, and outputs the analog image signal to the A / D conversion unit 107. The A / D conversion unit 107 converts the analog image signal input from the imaging unit 106 into a digital image signal (image) by applying A / D conversion processing. The barrier 103 covers the imaging system including the photographing lens 104, the shutter 105, and the imaging unit 106, thereby preventing the imaging system from being contaminated or damaged.

  The image processing unit 102 performs resizing processing and color conversion processing such as predetermined pixel interpolation and reduction on the image output from the A / D conversion unit 107 or the image read from the memory 109 by the memory control unit 108 described later. Is a block that executes In addition, the image processing unit 102 executes arithmetic processing related to exposure control and distance measurement control using an image input from the A / D conversion unit 107 by imaging, and outputs the calculation result to the system control unit 101. Based on the calculation result, the system control unit 101 operates the photographing lens 104 and the shutter 105 by a drive system (not shown) to perform exposure control and distance measurement control.

  The digital video camera 100 according to the present embodiment adopts TTL (through the lens) AF (auto focus) processing and AE (auto exposure) processing. In the AE process, the shutter speed, aperture, ND filter control, and gain control applied to the digital image signal in the image processing unit 102 are performed. The image processing unit 102 performs predetermined calculation processing using the captured image data, and also executes TTL AWB (Auto White Balance) processing based on the obtained calculation result.

  In the digital video camera 100, it is assumed that AF processing, AE processing, and AWB processing are executed in real time when used in a normal moving image shooting mode. However, when the automatic execution setting of each process is canceled, the parameters of each process can be set manually.

  The memory control unit 108 is a block that controls reading of information from the memory 109 and writing of information to the memory 109. The memory control unit 108 writes the digital image signal input from the A / D conversion unit 107 or the image signal output by applying various processes by the image processing unit 102 to the memory 109. The memory 109 is designed to have a sufficient storage capacity for storing the information because the information of the sound being captured is also written in addition to the image group related to the frame of the moving image being captured. It shall be.

  In addition to the image obtained by imaging, a display image displayed on the display unit 111 described later is written in the memory 109. When the display image is displayed on the display unit 111, the display image is read by the memory 109 and output to the D / A conversion unit 110 described later for display on the display unit 111.

  The D / A conversion unit 110 applies the D / A conversion process to the input digital image signal, thereby outputting the obtained analog image signal to the display unit 111 for display. The display unit 111 is a display device such as a small LCD, for example, and displays an analog image signal output from the D / A conversion unit 110. Note that the display unit 111 receives the digital image signal sequentially output from the A / D conversion unit 107 by imaging, is input to the D / A conversion unit 110, is converted again to an analog image signal, and is displayed on the display unit 111 (through display). As a result, it functions as an electronic viewfinder.

  The system timer 112 is a timer built in the digital video camera 100, and is used for measuring elapsed time in each program executed by the system control unit 101 and for processing, a time stamp, and the like.

  The operation input unit 115 is a user interface such as a power button, a mode switch SW, and a shooting button provided in the digital video camera 100. The operation input unit 115 analyzes and inputs an operation input by the user operating each operation member. The operation is transmitted to the system control unit 101.

  Note that the display unit 111 of this embodiment is a touch panel display, and the operation input unit 115 also detects contact input made on the touch panel, such as an input to a GUI button displayed on the display unit 111, for example. And The display unit 111 includes a display device and a touch panel. The touch panel is formed of a transmissive material so that the display on the display unit 111 can be visually recognized, and is attached to the upper layer of the display surface of the display device. The position of the touch input on the touch panel on the display device detected by the operation input unit 115 is associated with the position on the screen of the display device, and the operation input unit 115 displays the coordinates on the screen when the touch input is made. Detect as. It is assumed that the operation input unit 115 can detect the input contact input by assigning it to the following state (operation) according to the continuation state and the moving speed of the input position.

Touchdown: The state at the moment when the touch input is recognized Touch on: The state where the touch input is recognized continues for a predetermined time or longer Move: The touch is turned on and the input point moves at a predetermined distance or higher
State (drag, etc.)
Touch-up: If the input point that was being input is not recognized for a specified time or more and input is interrupted
State at the moment of judgment Flick: Touch up immediately after the move at a predetermined speed or more (flicking with a finger, etc.)
Touch-off: No touch input Tap: Touch-up is detected without detecting a move after touch-down
State (single touch)

  In the present embodiment, each process executed by the digital video camera 100 will be described using the seven states described above, but designation of a state name and a state that triggers each process is an example. It is shown and is not limited to the following.

  In the present embodiment, the operation input unit 115 has been described as detecting the touch input made on the touch panel, but the present invention is not limited to this. That is, the touch panel may be a touch panel of various methods such as a resistive film method, a capacitance method, a surface acoustic wave method, an infrared method, an electromagnetic induction method, an image recognition method, an optical sensor method, and the detected input is Depends on the method. That is, when an input is detected without directly touching the touch panel by the touch panel method, the operation input unit 115 detects the input and transmits the input to the system control unit 101.

  The recording medium I / F 116 is an interface for connecting the digital video camera 100 and a recording medium 117, which is a recording device detachably connected to the digital video camera 100, such as a memory card or an HDD. The recording medium 117 records, for example, a moving image image and sound encoded by the image processing unit 102 according to a predetermined encoding format via the recording medium I / F 116.

(Drawing tool GUI)
Here, the drawing tool displayed on the display unit 111 in the digital video camera 100 of the present embodiment will be described with reference to FIG. The drawing tool is a tool for a user to draw a line and a figure to be superimposed on a captured image displayed through on the display unit 111. A figure drawn using the drawing tool is a moving image. The image can be recorded in a state reflected when the image is recorded.

  FIG. 2A shows a state where a toolbar for various settings of the drawing tool is displayed on the display unit 111. The toolbar includes five types of icons: a drawing tool selection icon 201, a line type selection icon 202, a color selection icon 203, a stamp selection icon 204, and an animation stamp selection icon 205. The user can transition to a setting or selection GUI corresponding to each item by tapping each icon.

  FIG. 2B shows a drawing tool selection GUI displayed when the drawing tool selection icon 201 is tapped. The user selects one of the pencil 211, crayon 212, brush 213, brush 214, and spray 215. A line segment can be drawn by selecting one. Note that when an item for drawing a line segment is selected in the drawing tool selection GUI, the user taps the line type selection icon 202 and the color selection icon 203 to display the items shown in FIGS. 2 (c) and 2 (d). The corresponding setting can be made by transitioning to the GUI. The drawing tool selection GUI also includes an eraser 216 for erasing the drawn object (line segment, figure, etc.).

  2E and 2F show selection GUIs that transition when the stamp selection icon 204 and the animation stamp selection icon 205 are tapped, respectively. Unlike the above-described tool for drawing a line segment, the stamp and the animation stamp make it possible to place a preset figure or a character string figure such as a shooting time. Note that the animation stamp is a stamp in which a figure to be drawn changes over time.

  As described above, when a drawing tool or a stamp is selected by the user using the GUI, the user can perform drawing on the captured image displayed through. Specifically, a single input, i.e., from the detection of the touchdown to the detection of the touchup, the pointing position where the touchdown is detected is set as the start position, and the input is continuously performed from the start position. Lines and figures are drawn according to the locus (move locus).

(Drawing control process)
A specific process of the drawing control process of the digital video camera 100 of the present embodiment having such a configuration will be described with reference to the flowchart of FIG. The processing corresponding to the flowchart can be realized by the system control unit 101 reading out a corresponding processing program stored in, for example, the nonvolatile memory 114, developing the program in the system memory 113, and executing the program. Note that this drawing control process is started when, for example, the user operates the mode switching SW of the operation input unit 115 to set a special shooting mode for shooting a moving image in which an object is placed in a frame. Will be described.

  In step S <b> 301, the system control unit 101 determines whether a contact input for drawing or erasing an object on the display unit 111 has been made by the user. Specifically, the system control unit 101 determines whether or not the selection of the drawing tool is completed, and the operation input unit 115 detects a touchdown operation to a position in the through image display area. The system control unit 101 moves the process to S302 when a contact input is made, and repeats the process of S301 until a contact input is made when no contact input is made. In the description of the drawing control process, the following will be described assuming that an animation stamp is selected as the drawing tool.

  In step S302, the system control unit 101 determines whether there is a figure already drawn at the pointing start position where the touchdown is detected in step S301 (first determination). Specifically, the system control unit 101 sets an area (pointing area) having a size set in advance to a figure to be drawn, centered on the pointing start position, and an area (drawn already set) in an already drawn figure. It is determined whether or not (region) overlaps.

  For example, as shown in FIG. 4A, the system control unit 101 determines that a figure has already been drawn in the through image display area, and the drawn area 402 and the pointing area 401 related to the figure do not overlap. If so, the process proceeds to S303. If the system control unit 101 determines that the drawn area 402 and the pointing area 401 have an overlap as shown in FIG. 4B, for example, the process proceeds to S306.

When the pointing area and the drawn area are rectangular areas, it is possible to determine whether or not there is an overlap using the coordinates of diagonal vertices located at the upper left and lower right of each area. . For example, as shown in FIG. 5, when two regions A and B overlap, the following four conditional expressions are true at the same time.
(1) X _Aleft <X _Bright
(2) X _Bleft <X _Aright
(3) Y _Bbottom <Y _Atop
(4) Y _Abottom <Y _Btop

  That is, the system control unit 101 may determine that there is an overlap when the four conditions are all true. Also in the present embodiment, a rectangular area preset for each figure drawn in the through image display area and an area preset for the figure to be drawn centered on the pointing start position overlap. Whether or not is determined based on the above conditional expression will be described. In this case, the system control unit 101 may acquire, for example, information on a region set in advance in a graphic already drawn when the graphic is drawn and store the information in the system memory 113. However, the embodiment of the present invention is not limited to this, and the drawn area and the pointing area do not have to be rectangular, and may have any shape.

  In addition, the area assigned as the pointing area and set in advance to the figure to be drawn does not have to be an area centered on the position where the touchdown is detected. It may be an area based on the detected position. Furthermore, the size of the pointing area or the drawn area may always be the same size, or the size of each drawing target figure, such as the transparent color area of the figure to be drawn or already drawn. The size may be set depending on the size.

  In step S303, the system control unit 101 determines that the operation input into the through image display area is an input related to drawing of the figure, and draws the figure selected by the animation stamp selection GUI at the position where the touchdown is detected. To do. At this time, the system control unit 101 sets and starts a new drawing timer in the system timer 112, and at the same time, an erasure timer that counts the time that is set in advance for the drawn figure and is automatically erased. Set a new and start. Further, the system control unit 101 stores in the system memory 113 the coordinate information of the drawn area set for the drawn figure.

  In the digital video camera 100 of the present embodiment, it is assumed that a time until each figure drawn in the through image display area is automatically deleted is set in advance. This is because it is assumed that there is no need to draw a figure because the shooting angle and the state of the subject may change during the shooting of the moving image. The time until the figure is automatically erased may be different depending on, for example, the type and size of the stamp, or may be a fixed time. In the present embodiment, to simplify the explanation, it is assumed that 10 seconds is set as a fixed value as the time until the graphic is automatically deleted.

  Thereafter, the system control unit 101 executes a drawing mode process in S304. The drawing mode processing is repeatedly executed until the system control unit 101 determines that touch-up is detected in step S305.

(Drawing mode processing)
Here, the drawing mode process of the present embodiment, which is executed when it is determined that the operation input into the through image display area is an input related to drawing of a figure, is described with reference to the flowchart of FIG. Further explanation will be given.

  In step S <b> 601, the system control unit 101 determines whether the drawing timer set in the system timer 112 has passed 250 ms. In the present embodiment, as shown in FIG. 7A, while one input is continued, a figure is drawn at a constant time interval (250 ms interval) according to the locus of the continuously input position. Shall be. That is, the system control unit 101 determines whether or not to draw the next graphic in this step. If the drawing timer has passed 250 ms, the system control unit 101 moves the process to S602, and if not, moves the process to S605.

  In step S <b> 602, the system control unit 101 resets the drawing timer count set in the system memory 113 and restarts the count.

  In step S <b> 603, the system control unit 101 determines whether the pointing area centered on the position currently input to the display unit 111 overlaps the drawn area related to the already drawn figure ( Second determination). If the system control unit 101 determines that the pointing area and the rendered area do not overlap, the system control unit 101 moves the process to S604, and if it determines that the pointing area overlaps, the process moves to S605.

  In this embodiment, as shown in FIG. 8C, when the pointing area 811 centering on the position where the input is made and the drawn area 812 do not overlap, the system control unit 101 draws a new figure. Judge that it is possible. Further, when the pointing area 811 and the drawn area 812 overlap as shown in FIG. 8D, the system control unit 101 overlaps the already drawn figure when drawing a new figure. It is determined that the figure is not drawn.

  In step S <b> 604, the system control unit 101 draws the graphic selected by the animation stamp selection GUI at the position where the input has been made, and newly sets a deletion timer for the graphic to the system timer 112 and starts it.

  In step S <b> 605, the system control unit 101 determines whether there is a figure for which the erase timer set in the system timer 112 has passed 10 seconds among the already drawn figures. If there is a figure to be automatically deleted, the system control unit 101 moves the process to S606 to stop drawing the figure and complete the drawing mode process. If there is no figure, the drawing mode process is performed as it is. To complete.

  By doing so, in the drawing mode processing of the present embodiment, a figure is arranged in the through image display area while controlling so that a new figure is not duplicated with respect to an already drawn figure. Can do. That is, for example, even in a move operation with a slow movement speed, drawing can be controlled so that a new figure does not overlap with an already drawn figure without forcibly drawing a figure at a fixed time interval. it can.

When it is determined in S302 of the drawing control process that the pointing area and the drawn area have an overlap, the system control unit 101 performs the following process. In step S <b> 306, the system control unit 101 determines that the operation input into the through image display area is an input related to erasing a figure that has already been drawn, and executes the process in the erasure mode. The process in the erasure mode is repeatedly executed until the system control unit 101 determines that a touch-up is detected in S307.

(Erase mode processing)
Here, FIG. 6B shows the erasure mode processing of the present embodiment, which is executed when it is determined that the operation input into the through image display area is an input related to erasure of the already drawn figure. This will be further described with reference to the flowchart of FIG.

  In step S <b> 611, the system control unit 101 determines whether or not the drawing area related to the already drawn figure overlaps the pointing area centered on the position currently input to the display unit 111. . If the system control unit 101 determines that the pointing area and the drawn area overlap, the system control unit 101 moves the process to S612. If it is determined that the pointing area does not overlap, the system control unit 101 completes the erase mode process.

  In step S <b> 612, the system control unit 101 deletes the graphic related to the drawn area that overlaps the pointing area, and completes the deletion mode process. That is, for example, when a figure already drawn as shown in FIG. 7A exists in the through image display area, by performing a move operation as shown in FIG. 7B on the figure, The user can erase the figure.

  By doing so, in the erasing mode processing of the present embodiment, it is possible to eliminate a complicated operation for selecting a tool for erasing a graphic when erasing a graphic already drawn. Also, using the eraser tool to erase, it is not necessary to repeat the move operation on the already drawn figure like the tool to draw a line segment. can do.

  In this embodiment, whether or not the pointing area and the drawn area when the touchdown is detected, and the pointing area centered on the position where the input is performed in the move operation and the drawn area overlap. It demonstrated as what performs this determination. However, the overlap determination between the two regions may not be limited to whether or not there is an overlap.

  For example, if the pointing area and the drawn area are rectangular as in the present embodiment, the figure may not be drawn near the vertex of the rectangular area, so the two areas overlap each other at the vertex of the rectangular area. Even so, the shapes may not overlap. In such a case, the user may not be able to draw a figure at the intended position or may be set to the erase mode. Therefore, in the overlap determination, it is determined whether or not the two areas have a predetermined overlap or more. May be.

  As described above, the display control apparatus according to the present embodiment can easily erase a graphic already drawn in an image. Or the image by which the figure was drawn in the desired position can be produced | generated, avoiding duplication of a figure. Specifically, when the display control device draws a graphic in accordance with the locus of continuously input positions, a region set in advance in the graphic to be drawn is based on the start position of the continuous input. Then, it is determined whether or not the already drawn figure has a predetermined overlap with a predetermined area. At this time, if it is determined that there is no more than a predetermined overlap, the figure is drawn according to the locus of the input position, and if it is determined that there is an overlap greater than the predetermined, an input is made. The control is switched so as to erase the already drawn figure according to the locus of the selected position. When a figure is drawn according to the locus of the position, an area preset for the figure to be drawn based on the position where the input is made is greater than a predetermined area with the preset area for the already drawn figure. It is determined whether or not there is an overlap. And when it determines with having overlap, it controls not to draw a figure.

  By doing so, the operation of drawing a figure and the operation of erasing the figure are automatically selected according to the situation without performing complicated operations. Can be done easily. In addition, when drawing a figure, it is determined so as not to overlap the already drawn figure, so that it is possible to generate an image that does not give the impression that it is difficult for the user to see while the figure is drawn at a desired position of the user. it can.

(Modification)
In the above-described embodiment, when it is determined in the drawing mode processing that the pointing area centered on the position where the input has been made overlaps with the already-drawn area related to the already drawn figure, a new figure is displayed. It was described as not drawing. In this case, for example, if the time for automatically erasing the graphic being drawn is set, the following may occur.

  For example, as shown in FIG. 8A, when a figure drawing instruction is performed across the already drawn figure group 801, no new figure is drawn on the figure group 801. After that, when all the figures in the figure group 801 are automatically deleted, the figures drawn after the figure group 801 as shown in FIG. 8B are divided even though they are drawn continuously. There is a possibility of giving the user an impression of being.

  In order to avoid such a case, if it is determined that the pointing area centered on the position where the input has been made overlaps with the already drawn area related to the already drawn figure, the system control unit 101 What is necessary is just to process as follows. Specifically, if the system control unit 101 specifies a figure related to the drawn area determined to have an overlap, resets the figure deletion timer set in the system timer 112, and restarts the measurement. Good.

  By doing this, even if it is determined that the already drawn figure has an overlap with the pointing area centered on the position where the input has been made, until the figure is automatically deleted The time can be reset. That is, when drawing a figure according to the locus of continuously input positions, even if a figure already drawn exists on the locus, the already drawn figure is input continuously. It can be presented as a figure drawn according to the position.

  In view of the fact that the shooting angle and the state of the subject change during the shooting of the moving image, it may be considered that the user desires to draw a figure in accordance with the locus of new continuously input positions. . In such a case, in the drawing mode process, if there is a figure related to the drawn area that is determined to overlap with the pointing area centered on the position where the input is made, the figure is deleted, A new figure may be drawn at the input position.

  In the above-described embodiment, an example in which an animation stamp is drawn as a figure has been described. However, when a hand-drawn line segment such as a pen tool is input, the segmentation of the line segment such as a handwritten character may not be preferable. . For this reason, when the input is for drawing a line segment, even if there is a figure or line segment that has already been drawn, the line segment is forcibly drawn at the input position. You may control to do.

Further, in the present embodiment, the digital video camera 100 provided with the touch panel has been described. However, the implementation of the present invention is not limited to the digital video camera. It can be applied to other devices that can draw graphics. In other words, the present invention is not limited to contact input made on the touch panel, but can be applied to any device that can draw by operating a pointing device that can perform position input on the display screen. For example, when a PC is used as the display control device, it can be easily understood that an operation performed on the touch panel as described above may be associated with an operation performed with a mouse. In this case, the operation performed with the mouse is, for example,
・ Pressing down the left mouse button: Touch-down in touch operation ・ Pressing down the left mouse button: Touch-on in touch operation ・ Release operation after pressing the left mouse button: Touch-up in touch operation When the button is not pressed: Touch-off in touch operation-Mouse drag operation (operation to move the mouse by pressing the left button): Corresponding as in Move in touch operation.

  Note that the control of the system control unit 101 may be performed by a single piece of hardware, or the entire apparatus may be controlled by a plurality of pieces of hardware sharing the processing.

  Although the present invention has been described in detail based on the preferred embodiments thereof, the present invention is not limited to these specific embodiments, and various forms without departing from the gist of the present invention are also included in the present invention. included. Furthermore, each embodiment mentioned above shows only one embodiment of this invention, and it is also possible to combine each embodiment suitably.

  In the above-described embodiment, the case where the present invention is applied to a digital video camera has been described as an example. However, the present invention is not limited to this example, and a pointing device is provided and a figure can be drawn by the pointing device. Any display control device can be applied. In other words, the present invention can be applied to a personal computer, a PDA, a mobile phone terminal, a portable image viewer, a printer device including a display, a device including a pointing device such as a digital photo frame, a music player, a game machine, and an electronic book reader. is there.

(Other embodiments)
The present invention is also realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, etc.) of the system or apparatus reads the program code. It is a process to be executed. In this case, the program and the storage medium storing the program constitute the present invention.

Claims (22)

Position input means for inputting a position on the screen of the display device;
Drawing means for drawing a figure in accordance with the locus of the input position input by the position input means;
A process for determining whether or not a predetermined area based on a start position of one input by the position input means has a predetermined overlap or more with a predetermined area in a graphic already drawn by the drawing means. 1 determination means;
Control means for controlling drawing of a figure by the drawing means,
When it is determined by the first determination means that the predetermined area based on the start position does not overlap with a predetermined area on the already drawn figure, the control means controlled to render the figure is performed by the drawing means in response to the locus of the input position in the single input,
When it is determined by the first determination means that the predetermined area based on the start position has a predetermined overlap with a predetermined area on the already drawn figure, the control means Of the predetermined areas based on the input position during the input, the figure is not drawn in an area that does not overlap with a predetermined area on the already drawn figure, Of the predetermined area based on the input position during the input, the figure is not drawn in an area having a predetermined overlap with an area previously set in the already drawn figure. the preset region that controls so as to erase the figure the already drawn with an overlap equal to or greater than a predetermined in accordance with the locus of the input position during one of the input
Display control device comprising a call. While one-time input by the position input means continues, a predetermined area based on the position where the input is made has a predetermined overlap with a predetermined area in the already drawn figure. A second determination means for determining whether or not
The control means is determined by the first determination means that the predetermined area based on the start position does not have a predetermined overlap with a predetermined area in the already drawn figure , and When the second determination means determines that a predetermined area based on the position where the input has been made has a predetermined overlap with a predetermined area in the already drawn figure, the input The display control apparatus according to claim 1, wherein control is performed so that a drawing of a figure by the drawing unit is not performed at a position where the drawing is performed. While one-time input by the position input means continues, a predetermined area based on the position where the input is made has a predetermined overlap with a predetermined area in the already drawn figure. A second determination means for determining whether or not
The control means is determined by the first determination means that the predetermined area based on the start position does not have a predetermined overlap with a predetermined area in the already drawn figure , and When it is determined by the second determination means that a predetermined area based on the position where the input is made has a predetermined overlap with an area previously set in the already drawn figure, It is characterized in that control is performed so as to erase the already drawn figure whose set region has a predetermined overlap or more and draw the figure by the drawing means according to the position where the input is made. The display control device according to claim 1. Position input means for inputting a position on the screen of the display device;
Drawing means for drawing a figure in accordance with the locus of the input position input by the position input means;
While one-time input by the position input means continues, a predetermined area based on the position where the input is made is equal to or more than a predetermined area set in a graphic already drawn by the drawing means. Second determination means for determining whether or not there is an overlap of
Control means for controlling drawing of a figure by the drawing means,
When it is determined by the second determination means that a predetermined area based on the position where the input is made has a predetermined overlap with a predetermined area in the already drawn figure, the control means Does not draw the figure by the drawing means in the area determined to overlap the area previously set to the already drawn figure among the positions where the input during the one-time input is made. To control and
When it is determined by the second determination means that the predetermined area based on the position where the input has been made does not have a predetermined overlap with a predetermined area in the already drawn figure, The control means is a figure by the drawing means for an area determined not to overlap an area set in advance in the already drawn figure among the areas based on the position where the input during the one-time input is made. display control device characterized that you control as writing is performed. When a figure is drawn by the drawing means, the apparatus further comprises a setting means for setting a time until the drawn figure is automatically deleted,
The control means determines that the predetermined area based on the position where the input is made by the second determination means does not overlap with a predetermined area on the already drawn figure by a predetermined amount or more. Control is performed so that the setting means resets the time until the preset area is automatically erased set in the already drawn figure having a predetermined overlap or more. The display control device according to claim 2, wherein the display control device is a display control device.   6. The time until the drawn graphic set by the setting means is automatically deleted is a time set in advance for each type of graphic to be drawn. Display control device. Position input means for inputting a position on the screen of the display device;
  Drawing means for drawing a figure in accordance with the locus of the input position input by the position input means;
  A process for determining whether or not a predetermined area based on a start position of one input by the position input means has a predetermined overlap or more with a predetermined area in a graphic already drawn by the drawing means. 1 determination means;
  Control means for controlling drawing of a figure by the drawing means,
  When it is determined by the first determination means that the predetermined area based on the start position does not overlap with a predetermined area on the already drawn figure, the control means Control is performed so that the drawing by the drawing means is performed according to the locus of the input position during the one-time input until one input is completed,
  When it is determined by the first determination means that the predetermined area based on the start position has a predetermined overlap with a predetermined area on the already drawn figure, the control means Controlling to erase the already-drawn figure in which the preset area has a predetermined overlap or more according to the locus of the input position during the one-time input until the input of the number of times is completed. A display control device. Position input means for inputting a position on the screen of the display device;
Drawing means for drawing a figure in accordance with the locus of the input position input by the position input means;
A process for determining whether or not a predetermined area based on a start position of one input by the position input means has a predetermined overlap or more with a predetermined area in a graphic already drawn by the drawing means. 1 determination means;
While the input of one by the position input means is continued, the predetermined region relative to the position where the input is made, predetermined area and predetermined the already drawn graphic by said drawing means Second determination means for determining whether or not the above overlap is present;
Control means for controlling drawing of a figure by the drawing means,
It is determined by the first determination means that a predetermined area based on the start position does not overlap with a predetermined area on the already drawn figure, and the second determination When it is determined that the predetermined area based on the position where the input is made by the means has a predetermined overlap with the predetermined area in the already drawn figure, the control means the erase the previously drawn graphic region having an overlap of more than a predetermined, that controls as drawing shapes is performed by the drawing means according to a position that is adapted further the input
Display control device comprising a call. If the input of one by the position input means is an input for drawing a line, any one of claims 2 to 6, 8, characterized in that does not perform the determination by said second determination means 1 The display control device according to item. The figure is a stamp image having a predetermined drawing area,
  The drawing means draws the stamp image in an area corresponding to the locus of the input position input by the position input means.
The display control apparatus according to claim 1, wherein the display control apparatus is a display control apparatus. Imaging means for imaging a subject;
Recording means for recording a moving image picked up by the image pickup means,
Said recording means, if the drawing figures has been made by the drawing means on the image captured by the imaging means, any one of claims 1 to 10, characterized in that to record the moving image with the graphic The display control apparatus according to item 1. The position input means inputs a position in the screen by detecting an input to a touch panel configured on the display device,
Wherein one input of the display control device according to any one of claims 1 to 11, characterized in that an input to release from the start of touching the touch panel. Position input means for inputting a position on the screen of the display device;
Drawing means for drawing a figure in accordance with the locus of the input position input by the position input means;
First determination means for determining whether or not a predetermined area based on a start position of one input by the position input means overlaps a predetermined area on a graphic already drawn by the drawing means; ,
Control means for controlling drawing of a figure by the drawing means,
When the predetermined area relative to the said starting position by the first determination means determines that does not overlap with the already rendered predetermined area in figure, the control means in the input of the one Control is performed so that the drawing by the drawing means is performed according to the locus of the input position,
When it is determined by the first determination means that a predetermined area with the start position as a reference overlaps with an area set in advance in the already drawn figure, the control means is configured to input during the one-time input. depending on the locus of the position, that controls to erase the figure the already drawn the predetermined area overlaps
Display control device comprising a call. Position input means for inputting a position on the screen of the display device;
Drawing means for drawing a figure in accordance with the locus of the input position input by the position input means;
While the one-time input by the position input means continues, does the predetermined area based on the position where the input has been made overlap the area preset in the figure already drawn by the drawing means? Second determination means for determining whether or not;
Control means for controlling drawing of a figure by the drawing means,
When it is determined by the second determination means that a predetermined area based on the position where the input has been made overlaps with a predetermined area on the already drawn figure, the control means that controls so that is not carried out drawing of the figure due to the
Display control device comprising a call. A position input step in which the position input means inputs a position on the screen of the display device;
A drawing step in which the drawing means draws a figure in accordance with the locus of the input position input in the position input step;
The first determination unit has a predetermined area based on a start position of one input in the position input step as a reference overlaps with a predetermined area in the graphic already drawn in the drawing step. A first determination step for determining whether or not,
A control step for controlling drawing of the figure in the drawing step,
If it is determined in the first determination step that the predetermined area based on the start position does not overlap with a predetermined area on the already drawn figure, the control means In the control step, control is performed so that the drawing is performed in the drawing step according to the locus of the input position during the one-time input,
When it is determined in the first determination step that the predetermined region based on the start position has a predetermined overlap with a region set in advance in the already drawn figure, the control means performs the control step And drawing a figure in a predetermined area based on the input position during the one-time input in an area that does not overlap with a predetermined area in the already drawn figure. Of the predetermined area based on the input position during the one-time input, the graphic is drawn in an area that overlaps with the predetermined area in the already drawn graphic. with no the predetermined areas that control so as to erase the figure the already drawn with an overlap equal to or greater than a predetermined in accordance with the locus of the input position in the one input
Control method of the display control device comprising a call. A position input step in which the position input means inputs a position on the screen of the display device;
A drawing step in which the drawing means draws a figure in accordance with the locus of the input position input in the position input step;
While the second determination means continues the one-time input in the position input step, a predetermined area based on the position where the input has been made is preliminarily drawn on the graphic already drawn in the drawing step. A second determination step of determining whether or not the set region has a predetermined overlap or more;
A control step for controlling drawing of the figure in the drawing step,
When it is determined in the second determination step that a predetermined area based on the position where the input is made has a predetermined overlap with a predetermined area in the already drawn figure, the control In the control step, the means of the figure in the drawing step to the area determined to overlap the area previously set in the already drawn figure out of the positions where the input during the one-time input is made . Control to prevent drawing ,
When it is determined in the second determination step that the predetermined area based on the position where the input is made does not have a predetermined overlap or more than a predetermined area in the already drawn figure, The control means, in the control step, out of the region based on the position where the input during the one-time input is made, to the region determined not to overlap with the region preset in the already drawn figure control method of a display control device, characterized that you control as drawing shapes is performed in the drawing step. A position input step in which the position input means inputs a position on the screen of the display device;
  A drawing step in which the drawing means draws a figure in accordance with the locus of the input position input by the position input means;
  The first determination unit has a predetermined area based on a start position of one input in the position input step as a reference overlaps with a predetermined area in the graphic already drawn in the drawing step. A first determination step for determining whether or not,
  The control means has a control step for controlling drawing of the figure in the drawing step,
  When it is determined in the first determination step that the predetermined area based on the start position does not overlap with a predetermined area on the already drawn figure, the control means In the control step, control is performed so that the drawing in the drawing step is performed according to the locus of the input position during the one-time input until the one-time input ends.
  When it is determined in the first determination step that the predetermined area based on the start position has a predetermined overlap with a predetermined area on the already drawn figure, the control means performs the control In the process, until the one-time input is completed, the already-drawn figure in which the preset area has a predetermined overlap or more according to the locus of the input position during the one-time input is erased. A control method for a display control apparatus, characterized by: A position input step in which the position input means inputs a position on the screen of the display device;
A drawing step in which the drawing means draws a figure in accordance with the locus of the input position input in the position input step;
The first determination unit has a predetermined area based on a start position of one input in the position input step as a reference overlaps with a predetermined area in the graphic already drawn in the drawing step. A first determination step for determining whether or not,
A second determination unit, while the input of one in the position input step is continued, the predetermined area relative to the position where the input is made, the already drawn graphic in the drawing step A second determination step for determining whether or not the predetermined region overlaps with a predetermined region;
A control step for controlling drawing of the figure in the drawing step,
In the first determination step, it is determined that the predetermined area based on the start position does not overlap with a predetermined area on the already drawn figure, and the second determination If it is determined in the step that the predetermined area based on the position where the input is made has a predetermined overlap with a predetermined area in the already drawn figure, the control means in the control step erases the figure the already drawn set area Me該予has overlap over a predetermined, that controls as drawing shapes is performed in addition the drawing step according to the position where the input has been made
Control method of the display control device comprising a call. A position input step in which the position input means inputs a position on the screen of the display device;
A drawing step in which the drawing means draws a figure in accordance with the locus of the input position input in the position input step;
A first determination unit configured to determine whether or not a predetermined region based on a start position of one input in the position input step overlaps a region set in advance in the graphic already drawn in the drawing step; A first determination step,
A control step for controlling drawing of the figure in the drawing step,
When the predetermined area relative to the said starting position in said first determination step is determined not to overlap with the already rendered predetermined area in figure, the control means in the control step, the 1 controlled to render the figure is performed in the drawing step according to the locus of the input position in the times of the input,
When the predetermined area relative to the said starting position in said first determination step is determined to overlap the already rendered predetermined area in figure, the control means Oite said control step, the 1 depending on the locus of the input position in the times of the input, the control method of the display control device comprising a benzalkonium controls to erase the figure the already drawn set area Me該予overlap. A position input step in which the position input means inputs a position on the screen of the display device;
A drawing step in which the drawing means draws a figure in accordance with the locus of the input position input in the position input step;
While the second determination means continues to input one time in the position input step, a predetermined area based on the position where the input is made is preliminarily applied to the graphic already drawn in the drawing step. A second determination step for determining whether or not the set region overlaps;
A control step for controlling drawing of the figure in the drawing step,
In the second determination step, when it is determined that a predetermined region based on the position where the input is made overlaps with the preset region , the control means performs the drawing step in the control step. that controls kicking so that is not carried out drawing of the figure
Control method of the display control device comprising a call. A program for a computer to function as each unit of the display control device according to any one of claims 1 to 1 4. The computer, recording a program for causing to function as each means of the display control device according to any one of claims 1 to 1 4, the computer readable recording medium.

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